Here is an example of 2 appliances...
1. GE cooktop model #JP336DDBB ($649) 7.4KW
2. GE single wall oven model #JT3000DFBB ($1399) 4.2KW
Total KW=11.6
Using 220.55 column B along with Note #3 for 2 appliances we can multiply 11.6kw(7.4+4.2) x 65%= 7.54KW
7.54kw / 240volt= 31.42amps
31.42amps is good on a #8wire with a 40amp breaker.